How to Form an LLC in Connecticut (2026 Guide)
Everything you need to form a Connecticut LLC: state filing fee ($120), processing time (3-5 business days), annual compliance, taxes, and the exact 7-step process. Reviewed by IRS Enrolled Agents.
To form an LLC in Connecticut, file the Articles of Organization with the Connecticut Secretary of State (fee: $120), appoint a registered agent with a Connecticut street address, obtain an EIN from the IRS, and adopt an operating agreement. Standard processing takes 3-5 business days. The annual annual report is $80, due March 31. With Gullia Filing, total first-year cost is $349 (all-inclusive: state fee, registered agent, EIN, operating agreement).
Connecticut LLC Cost Breakdown
Total transparent pricing for forming and maintaining a Connecticut LLC. No surprise upsells, no hidden fees.
| Item | Cost | Notes |
|---|---|---|
| Connecticut SoS filing fee | $120 | One-time, paid to the state |
| Expedited processing (optional) | +$50 | Reduces wait to 24 hours |
| Registered agent (year 1) | Included | Included free in every Gullia package |
| EIN (Federal Tax ID) | Included | Filed with the IRS, no extra charge |
| Operating agreement | Included | Attorney-reviewed, state-compliant |
| Gullia Filing Starter service fee | $149 | Flat fee, no upsells |
| Total first-year cost | $349 | All-inclusive, no surprises |
| Recurring: Annual Report | $80/yr | Due March 31 |
The 7-Step Connecticut LLC Formation Process
Every Connecticut LLC follows the same core process. Here is exactly what happens, in order, and what Gullia Filing handles on your behalf.
Choose a Connecticut LLC name
Pick a name that includes "LLC", "L.L.C.", or "Limited Liability Company" and is distinguishable from existing Connecticut entities. Our free name check tool verifies availability against the Connecticut Secretary of State database in seconds.
Appoint a Connecticut registered agent
Connecticut requires a registered agent with a physical street address in the state to receive legal and tax notices. Gullia Filing provides this service in every package, protecting your privacy and ensuring you never miss a critical filing.
File the Articles of Organization
Submit formation paperwork to the Connecticut Secretary of State with a $120 filing fee. Expedited processing is available for $50 additional. We handle the filing electronically and forward your certified copy within 3-5 business days.
Obtain your EIN (Federal Tax ID)
Apply to the IRS for an Employer Identification Number, required to open a US business bank account, hire employees, and file federal taxes. Included free in every Gullia Filing package.
Draft an operating agreement
An operating agreement establishes member rights, profit distributions, management structure, and dispute resolution. Even single-member LLCs benefit from having one on file for bank account opening and to reinforce the corporate veil. We provide a state-compliant, attorney-reviewed template in every package.
Register for Connecticut taxes and licenses
Register with the Connecticut Department of Revenue for state tax IDs, sales tax permits if applicable, and any industry-specific licenses. Our compliance calendar tracks every deadline automatically.
Open a US business bank account
With your EIN, Articles of Organization, and operating agreement, you can open a US business bank account. We provide bank-ready document packages and can introduce you to fintech partners that accept remote onboarding.
Connecticut LLC Tax Obligations
State tax summary
Graduated personal income tax up to 6.99% on CT-resident LLC members. Business Entity Tax was repealed 2020.
Franchise tax: No LLC franchise tax on pass-throughs. C-Corp elections pay 7.5% corporate income tax + surcharge.
Federal tax defaults
A single-member Connecticut LLC is treated as a disregarded entity federally (income flows to Schedule C or E of the owner's Form 1040). A multi-member LLC defaults to partnership taxation (Form 1065). You may elect S-Corp status (Form 2553) or C-Corp status (Form 8832) if it reduces overall tax.
See tax and accounting servicesWhy form your LLC in Connecticut
- Hartford is the 'Insurance Capital of the World' — deep insurance and financial services ecosystem.
- Business Entity Tax repealed in 2020 — recurring state costs are just the $80 annual report.
- Proximity to both NYC and Boston without either city's high formation costs.
Things to watch for in Connecticut
- Connecticut's Personal Income Tax reaches 6.99% and applies to pass-through LLC income for CT residents.
- Stamford and Hartford have some of the highest commercial real estate costs in the US.
Top industries for Connecticut LLCs
Gullia Filing vs Alternatives (Connecticut)
The state filing fee is the same everywhere. What differs is the service fee, what is included, and how transparent the pricing is.
| Provider | Base service fee | Registered agent Y1 | EIN included | Operating agreement | Total first year |
|---|---|---|---|---|---|
| Gullia Filing (Starter) | $149 | Included | Yes (free) | Yes (attorney-reviewed) | $269 |
| DIY (file yourself) | $0 | $50-150 or self | Self (free) | No (buy separately) | $120+ |
| Bizee (Silver) | $0 + upsells | Free Y1, $119/yr after | Upsell ($70) | Upsell ($99) | $289+ |
| LegalZoom (Basic) | $249 | Upsell ($299/yr) | Upsell ($79) | Upsell ($99) | $846+ |
| Northwest RA | $39 | $125/yr | Upsell ($200) | Yes (template) | $484+ |
| ZenBusiness (Starter) | $0 + $199/yr | Free Y1, $199/yr after | Upsell ($99) | Upsell ($99) | $319+ |
Comparison based on publicly available pricing as of 2026. State filing fee ($120) is paid to Connecticut and identical across providers. Verify current pricing directly with each provider before purchasing.
Frequently Asked Questions
The most common questions about forming an LLC in Connecticut, answered by our Enrolled Agents.
Compare Connecticut to nearby states
Ready to form your Connecticut LLC?
Flat $149 service fee. State fee $120 paid directly to Connecticut. EIN, registered agent, and operating agreement included. No upsells, no surprises.